变量

During the process of solving power flow, the incremental transmission loss of each node can be easily obtained by means of simply solving the transposed matrix of original n-order matrix.

介绍了一种基于直流潮流的网损微增率新算法直流雅可比矩阵法，该方法以直流潮流为基础，引入虚拟网损负荷变量并构造出带有松弛负荷变量的有功不平衡方程雅的可比矩阵，在解潮流过程中只需求解n阶矩阵的转置矩阵，即可获得各个节点的网损微增率。

The key problem of this model is to acquire injecting power actual utilization rates. A pseudo load variable to balance network losses and to construct its corresponding Jacobian matrix is introduced. In the solution power flow process, injecting power actual utilization rates of each generation could be easy obtained with solving the n step transposed matrix.

该模型核心是上网电能实际利用率的计算，以直流潮流为基础，引入虚拟网损负荷变量并构造出带有松弛负荷变量的有功不平衡方程雅可比矩阵，一次求解n阶矩阵的转置矩阵，获得各发电机组的上网电能实际利用率。

Feldman examined some properties of CLMC and found that it is neither an intensive nor extensive thermodynamic variable, and proposed a simple alteration of CLMC that renders its extensive. However the remedy results in a quantity that is a trivial solution of the realizes compensatory form of density and not as a measure of structure.

David详细研究了CLMC 的特性，发现它既不是一个热力学集中变量也不是一个热力学扩张变量，并提出一种满足热力学扩张特性的补偿形式，但最后证明CLMC 只是熵密度的普通解，不能作为结构测度。

In this paper, the combination of the section variables in a truss is discussed in theory and the min...

本文着重从理论上探讨了截面变量的归并问题，给出了所需的最少截面变量数目和方便可行的求解方法。

In the evaluation, we find that in order to achieve a high and appropriate correct classification rate, the cutoff should be selected by trading off tyeⅠerror rate and the typeⅡerror and efforts should be made to reduce the potential cost of two types of errors to the decision-maker.

结果显示，在jackknife method方法下包含了多因素因子的模型对经营困境的分类识别能力比单独使用财务变量因子的模型有较大增强，说明非财务变量包含了与经营困境有关的重要信息。

The relation of strength and ultrasonic wave velocity of concrete with different damage were researched.

通过研究混凝土受损前后的强度和超声波传播速度，选取与强度有关的内部损伤变量，建立了内、外损伤变量之间的关系。

The correlated phenomena could be caused by a third, previously unconsidered phenomenon, called a lurking variable or confounding variable .

的相关现象可能造成的三分之一，先前未被考虑的现象，称为潜伏变量或混杂变量。

The theory foundation was proposed to simplify calculation of the reliability analysis by regarding the basic random variables as uncorrelated variables and to determinate the effect of the correlation coefficients on the structural reliability and their importance level.

本文研究结果为将基本随机变量作为独立变量处理从而简化可靠性分析运算，或确定相关系数对结构可靠性的影响以及重要程度提供理论根据。

This random variable can be derived from a (0,1) uniformly distributed random variable according to a given distribution.

按照给定的分布，这一随机变量能由(0，1)均匀分布的随机变量加以变换得到。

This paper,uses the property of being uniformly integrable to truncate the random variable sequences,and under the condition of φx↑,φx2↓,obtain a weak law of large number of martingale difference sequences by the weak convergence theorem.

通过使用一致收敛性对随机变量序列进行截尾，并借助随机变量序列的弱收敛定理，在φ↑，φx2↓的条件下给出了一个鞅差序列的弱大数定律。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。